Mechanical movement



March 29 1927. 1 1,622,841

A. L. POWELL MECHANICAL MOVEMENT inal Filed Dec. 10. 1919 1. 11 12, 3011 Q g V 5 26 J1 9 r 30 *1 my? 74 3/ I \i Q I :I/ @1 I I 7 I, 1 F I v I6 I I 1' I 5/ III I I I &1

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Patented Mar. 29, 1927.

UNITED STATES 1,622,841 PATENT OFFICE.

ALVAH L. POWELL, OF MILES CITY, MONTANA, ASSIGNOR TO THE A. L. POWELLPOWER COMPANY, A CORPORATION OF MONTANA.

MECHANICAL MOVEMENT.

Original application filed December 10, 1919, Serial No. 343,958.Divided and this application filed November 9, 1923.

This invention relates to certain new and useful improvements inmechanical movements and is a divisional application of my applicationNo. 343,958, filed December 10, 1919.

The principal object of the present invention is the novel manner inwhich the power is transmitted from a drive shaft to a. driven elementby means of orbital moving elements disposed between the drive shaft andthe driven elements.

Another object of the invention resides in the novel manner in which thedriven element is balanced.

lVhile I have set forth above some of the objects of the presentinvention, it will, of course, be understood that others will presentthemselves to those skilled in the art.

In the drawings, wherein I have shown merely for the purpose ofillustration the preferred embodiments of the invention,

Fig. 1. is a rear view of my improved mechanical movement, and

Fig. 2 is an end view thereof.

Referring more in detail to the drawings wherein similar referencecharacters indicate similar parts throughout, a base 1 is providedhaving standards 2, 3, 4 and 5. Thest-and ards 2 and 3 are provided withbearings 6, 7, 8 and 9. A countershaft 10 is journaled in the bearings 6and 7 in the standards 2 and 3 respectively and a drive shaft 27 isjournaled in the bearings 8 and 9 in the standards 2 and 3 respectively.The drive shaft 27 extends beyond the standard 3 and is adapted to berotated by any suitable power means.

Two or more sprocket wheels 28 are rigidly mounted on each of the shafts10 and 27 the sprockets on the shaft 27 being in the same vertical planewith a corresponding sprocket wheel. on the countershaft 10. Sprocketchains 29 are trained over the sprockets on the shaft 27 and those onthe countershaft 10. there being one sprocket chain for each of the twosprockets which lie in the same plane. Transmission bars 30, preferably4 in numher are carried by the sprocket chains 29, each of the barsbeing provided near their outer ends with curved projections 11, betweenwhich curved projections, a flat bearing surface 12 is provided.

While I have mentioned the use of sprocket wheels and sprocket chains,any suitable Serial No. 673,853.

power transmitting mechanism might be interposed between the drive shaft27 and the countershaft 10, such as belt and pulleys, or the mechanicalequivalents thereof.

In the standard 4, a bearing 13 is provided at the upper end thereof, inwhich bearing is journaled a shaft 14, on which are rigidly mountedgears 15 and 32, the gear 32 being considerably larger than the gear 15.

While in my preferred construction I show the gear 32 as being nearlytwice as large as the gear 15, I do not limit myself to the relativesizes of these gears, for the sizes of the gears would vary ascircumstances demand.

On the gear wheel 32, a pluralityof stub shafts 16 are provided,preferably 3 in number, located equi-distant apart and approximately thesame distances from the center of. the shaft 14. On each of the stubshafts 16 is mounted a roller 31,.

On the standard 5, a duplicate of the mechanism mounted on the standard4 is provided, the gears 32 intermeshing so as to provide a balancedarrangement for the driven elements.

In operation, the shaft 27 drives the countershaft 10 by means of thesprocket wheels28 and sprocket chains 29. The only function of thecountershaft 10 is to hold the sprocket chains under tension. As thesprocket chains 29 travel over the sprocket wheels, the transmissionbars 30 come into contact with the rollers 31 carried by the gear wheels32, the curved projections 11 first contacting with the rollers 31, asis clearly shown in Fig. 1 of the drawings. As the transmission bar 30travels downwardly after coming in contact with the rollers 31, thepower is transmitted from the transmission bar 30 to the gear wheels 32,rotating the same and thereby rotating the driven gears 15 through theinstrumentality of the shafts 14.

While I have described the preferred embodimentof my invention, it will,of course,

be understood that many variations therefrom may be resorted to withoutsacrificing any of the spirit of the invention. I, there fore, do notlimit myself to the specific embodiment here shown except as I may limitmyself in the annexed claims:

What I claim is 1. In a mechanical movement a drive reams i1 shaft, :1countersl'iaft, wheels carried by each means, a driven means, powertransmitting of said shafts, flexible means passing over said wheels,transmission bars carried by said flexible means, each of saidtransmission bars having curved projections at their outer extremities,a driven shaft and power transmission means interposed between saiddriven shaft and said transmission bars, said curved projections beingadapted to cam said transmission means inwardly and clownwardly.

2. In a mechanical movement a drive shaft, a driven shaft, a sprocketcarried by each of said shafts, a sprocket chain trained over each ofsaid sprockets, transmission bars carried by the said chains, stubshafts, a gear on each stub shaft, rollers rotatably mounted on saidgears, said driven means being actuated by. the transmission barsexerting force on the said rollers.

3. In a mechanical movement a drive shaft, a counteshaft, a plurality ofsprockets on each of said shafts, flexible means operatively connectingthe sprockets of the drive and countershafts, a plurality oftransmission bars carried by the said flexible means interposed betweenthe driven means and adapted to be actuated by said transmission bars,said transmission bars being provided with curved projections near theirextremities adapted to engage said power transmitting means and cam thesame inwardly and downwardly.

i. In a mechanical movement a drive shaft, a countershaft, a pluralityof sprockets on each of said shafts, flexible means operativelyconnecting the sprockets of the drive and countershafts, a plurality oftransmission bars carried by the said flexible means, a driven means,power transmitting; means interposed between the driven means andadapted to be actuated by said transmission bars, said transmission barsbeing provided with curved projections near their extremities and meansoperativelyconnected with said driven means whereby the forcetransmitted may be increased.

In testimony whereof I aflix my signature.

ALVAH L. POl VELL.

